National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Mostly Cloudy

43°F

6°C

Humidity 74%
Wind Speed NW 3 mph
Barometer 29.94 in (1014.5 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 30 Apr 9:53 pm EDT
Extended Forecast for

2 Miles ENE Williamsburg PA

Frost Advisory May 1, 12:00am until May 1, 08:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. West wind around 6 mph becoming calm after midnight.

    Low: 36 °F

    Mostly Clear
    then Areas
    Frost

  • Friday

    Friday: Showers likely, mainly after 2pm. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 58. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Areas Frost
    then Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers before 2am. Mostly cloudy, with a low around 38. Light northwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly cloudy, with a high near 57. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 57 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Areas of frost after 3am. Otherwise, partly cloudy, with a low around 35. Northwest wind around 6 mph.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, mostly sunny, with a high near 57.

    High: 57 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Mostly sunny, with a high near 68. Chance of precipitation is 30%.

    High: 68 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of frost after 5am. Otherwise, mostly clear, with a low around 36. West wind around 6 mph becoming calm after midnight.
Friday
Showers likely, mainly after 2pm. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 58. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 2am. Mostly cloudy, with a low around 38. Light northwest wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A slight chance of showers after 2pm. Mostly cloudy, with a high near 57. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
Areas of frost after 3am. Otherwise, partly cloudy, with a low around 35. Northwest wind around 6 mph.
Sunday
Areas of frost before 8am. Otherwise, mostly sunny, with a high near 57.
Sunday Night
Partly cloudy, with a low around 41.
Monday
A chance of showers after 2pm. Mostly sunny, with a high near 68. Chance of precipitation is 30%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Williamsburg PA
 40.47°N 78.18°W (Elev. 1053 ft)
Last Update:
8:06 pm EDT Apr 30, 2026
Forecast Valid:
10pm EDT Apr 30, 2026-6pm EDT May 7, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation